Bacterial infection of the lungs, i.e. bacterial pneumonia, is common such as acute bronchitis and bacterial pneumonia, such as Streptococcus pneumoniae and staphylococcal pneumonia, which will present with high fever, chills, cough, sputum, chest pain and other symptoms. 1. Acute bronchitis: If it is determined to be caused by bacterial infection, neomacrolides or penicillins, such as azithromycin and amoxicillin, may be preferred. 2. Bacterial pneumonia (1) Streptococcus pneumonia: it is a pneumonia caused by Streptococcus pneumoniae, which is highly prevalent in winter and spring, and is often accompanied by respiratory viral infections. Before the appearance of pneumonia symptoms, there are mostly precursor symptoms of upper respiratory tract infection, such as nasal congestion, runny nose, headache, etc., followed by high fever, chills, generalized muscle pain, cough, cough rust-colored sputum, chest pain, etc.. (2) Staphylococcal pneumonia: It is an acute purulent inflammation caused by staphylococcus bacteria, which often occurs in people with underlying diseases such as diabetes mellitus, malnutrition, or pre-existing bronchopulmonary diseases. The onset of this disease is rapid, there will be high fever, chills, cough, cough purulent sputum and a large amount, generalized muscle and joint pain, poor mental health, and in severe cases, the manifestation of shock. People with bacterial infections of the lungs are advised to go to the respiratory medicine department of a regular hospital for diagnosis and treatment after evaluation by a doctor.